Discharge collector for fluid cooled roll

ABSTRACT

A discharge collector for a fluid cooled roll has a nozzle engaging each radial fluid outlet in the shaft of the roll, and a collecting chamber surrounding the shaft into which chamber the nozzles protrude and emit cooling water. An alternative embodiment includes a sleeve having an internal water passageway attached to the roll and communicating with the radial fluid outlets, and one or more nozzles engaging the sleeve to deliver discharged cooling water to the collecting chamber.

United States Patent [1 1 Edmonson Feb. 5, 1974 DISCHARGE COLLECTOR FOR FLUID COOLED ROLL [75] Inventor: Fay R. Edmonson, Birmingham,

Ala.

[73] Assignee: United States Steel Corporation, Pittsburgh, Pa.

[22] Filed: Aug. 25, 1972 [21] Appl. No.: 283,865

[52] US. Cl 137/802, 137/580, 137/582, 72/201 [51] Int. Cl B2lb 27/06, B21b 27/08 {58] Field of Search... 137/339, 262, 580, 582, 802;

[56] References Cited UNITED STATES PATENTS 3,604,237 Kawanami et al. 72/201 2,831,710 4/1958 Edmonson 285/190 3,262,468 7/1966 Metzger 137/802 Primary Examiner-William R. Cline Attorney, Agent, or FirmRalph H. Dougherty [5 7] ABSTRACT A discharge collector for a fluid cooled roll has a nozzle engaging each radial fluid outlet in the shaft of the roll, and a collecting chamber surrounding the shaft into which chamber the nozzles protrude and emit cooling water. An alternative embodiment includes a sleeve having an internal water passageway attached to the roll and communicating with the radial fluid outlets, and one or more nozzles engaging the sleeve to deliver discharged cooling water to the collecting chamber.

6 Claims, 4 Drawing Figures PATENTED FEB 51974 SHEET l U? 3 F/GI 2 PATENIED 5W4 3,789.882

sum 2 BF 3 FIG. 3

PATENTED FEB SHEET 3 UP 3 III ili

ll LL DISCHARGE COLLECTOR FOR FLUID COOLED ROLL The present invention relates generally to apparatus for removing a cooling fluid from a fluid-cooled roll. This apparatus is especially well suited for use with a direct drive conductor roll on an electrolytic tinning line.

Heretofore, cooling fluid from fluid-cooled rolls has been collected through a fluid coupling as shown in my US. Pat. No. 2,831,710. Water discharges through radial outlets into passageways in a sleeve and bushing and finally entering a groove in the coupling housing from whence it is emitted through an outlet duct. Not only is this a complex arrangement, but also the bushing rotates in the housing, causing extensive wear on both of these parts. I have invented a discharge collector that has no moving parts in sliding contact with any other part.

It is the primary object of my invention to provide a fluid discharge collector for a fluid-cooled roll which can receive fluid emitted from the roll and conduct it away from the roll without retarding the flow of liquid in the cooling system of the roll.

It is another object to provide a discharge collector that has no moving parts in sliding contact with any other part.

It is another object to provide a discharge collector which is inexpensive to fabricate and install, yet requires minimum maintenance during service.

These and other objects will become more apparent by referring to the following specification and the appended drawings in which:

FIG. 1 is a longitudinal cross-sectional view of my fluid coupling;

FIG. 2 is a partially sectioned end view of my cou- P g;

FIG. 3 is a longitudinal cross-sectional view similar to FIG. 1, showing an alternative embodiment of my invention; and

FIG. 4 is an end view of the embodiment of FIG. 3.

As shown in FIG. 1, a water-cooled roll has a shaft 12, which is provided with an axial duct 14 for conducting water as indicated by arrows from the body of the roll to radial fluid outlets 16. One end of the shaft, the left end as viewed in FIG. 1, is connected with a drive spindle 17. The end of the duct 14 toward the drive spindle is plugged in a conventional manner by plug 18. As best shown in FIG. 2, circumferentially spaced radial fluid outlets 16 are threaded to receive nozzle assemblies 20. A collecting chamber 22 comprising disc 24, circumferential ring 26 and flange 28 is mounted on a support (not shown) and surrounds shaft 12. The chamber, which is generally toroidal, has a wire mesh screen 30 mounted on its back wall and a discharge opening 32 in its bottom wall. The screen may be spaced from the back wall, if desired. The central wall 34 of the chamber is sloped as shown in FIG. 1 to aid in collecting the water. The nozzles of nozzle assembly 20 protrude through opening 36 into the chamber. As the nozzles are rotating with the shaft 12, they discharge water against screen 30. This screen prevents or minimizes splash. The nozzles may also be set at any desired trail angle to assist in minimizing splash.

In the alternative embodiment shown in FIGS. 3 and 4, the nozzle assemblies 20 are attached to a sleeve 40, which is held in place on shaft 12 by a set screw 42. Sleeve 40 has an annular water passageway 44. 0 rings 46 and 48 provide a fluid tight seal between the sleeve and the shaft. The shaft is turned to a smaller diameter to accommodate the sleeve, and this results in an index shoulder 50, which automatically aligns the water passages in the shaft and sleeve when the sleeve is placed upon the shaft in contact with the index shoulder. The nozzles and the collecting chamber are the same in the embodiment of FIGS. 3 and 4 as in the embodiment of FIGS. 1 and 2. Set screws 52 provide a means of controlling the elevation of the collecting chamber 22.

It can readily be seen from the foregoing that I have invented an apparatus for removing the cooling fluid from a conductor roll in which no moving parts are in frictional contact with any other part, which is inexpensive to fabricate and install, and which requires almost no maintenance during service.

I claim:

1. The combination, with a fluid cooled roll and a rotatable shaft on which said roll is mounted and which has an axial duct for conducting cooling fluid, of a collector for fluid discharging from said duct, said collector comprising walls forming a substantially torroidal chamber encircling said shaft in spaced relation thereto, said walls having a circular opening, and at least one nozzle assembly fixed to said shaft and having a nozzle directed into said chamber through said circular opening, said shaft having a fluid outlet affording communication between said duct and said nozzle, said chamber having an outlet opening in its bottom wall.

2. A combination according to claim 1 further comprising a screen on the inside wall of said chamber opposite said circular opening, whereby splash from fluid impinging against said inside wall will be minimized by said screen.

3. A combination according to claim 1 wherein said nozzle assembly threadedly engages said outlet.

4. A combination according to claim 1 wherein said nozzle is mounted in said outlet with an oblique discharge angle of water between said nozzle and the back wall of said collecting chamber, and the discharge end of the nozzle trails the inlet end of the nozzle as the roll rotates, whereby splash of discharge water is minimized.

5. A combination according to claim 1 wherein said outlet is substantially radial.

6. A combination according to claim 1 wherein said nozzle assembly comprises a sleeve having an annular cavity therein mounted on said shaft with said cavity communicating with said outlet said sleeve being rotatable with said shaft, and at least one nozzle engaging said sleeve and communicating with said cavity. 

1. The combination, with a fluid cooled roll and a rotatable shaft on which said roll is mounted and which has an axial duct for conducting cooling fluid, of a collector for fluid discharging from said duct, said collector comprising walls forming a substantially torroidal chamber encircling said shaft in spaced relation thereto, said walls having a circular opening, and at least one nozzle assembly fixed to said shaft and having a nozzle directed into said chamber through said circular opening, said shaft having a fluid outlet affording communication between said duct and said nozzle, said chamber having an outlet opening in its bottom wall.
 2. A combination according to claim 1 further comprising a screen on the inside wall of said chamber opposite said circular opening, whereby splash from fluid impinging against said inside wall will be minimized by said screen.
 3. A combination according to claim 1 wherein said nozzle assembly threadedly engages said outlet.
 4. A combination according to claim 1 wherein said nozzle is mounted in said outlet with an oblique discharge angle of water between said nozzle and the back wall of said collecting chamber, and the discharge end of the nozzle trails the inlet end of the nozzle as the roll rotates, whereby splash of discharge water is minimized.
 5. A combination according to claim 1 wherein said outlet is substantially radial.
 6. A combination according to claim 1 wherein said nozzle assembly comprises a sleeve having an annular cavity therein mounted on said shaft with said cavity communicating with said outlet said sleeve being rotatable with said shaft, and at least one nozzle engaging said sleeve and communicating with said cavity. 